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Re: SNOT at large angles
From: Frank Reed CT
Date: 2004 Oct 31, 21:20 EST
From: Frank Reed CT
Date: 2004 Oct 31, 21:20 EST
Alex E wrote:
"ERD 0.5 0.3' 0.3' 0.3' 0.3
It look like my sextant has some arc distortion at large arcs.
I am going to make a table of it using star-to-star distances."
There may be other issues, too. Such large angles are difficult to observe for a variety of reasons from shaky hands to telescope collimation. If there *is* arc error, once it's measured, it's easy to correct for, of course.
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois
"ERD 0.5 0.3' 0.3' 0.3' 0.3
It look like my sextant has some arc distortion at large arcs.
I am going to make a table of it using star-to-star distances."
There may be other issues, too. Such large angles are difficult to observe for a variety of reasons from shaky hands to telescope collimation. If there *is* arc error, once it's measured, it's easy to correct for, of course.
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois